Suction cleaner



March 28, 1944. G TRQXLER 2,345,514

SUCTION CLEANER Filed April 23, 1941 4 Sheets-Sheet 1.

March 28, 1944.

Q C. G. TROXLER SUCTION CLEANER Filed April 23, 1941 4 Sheets-Sheet 2KNVENTOR Clzarles GJroxler A TTORNEY March 28, 1944. Q TRQXLER 2,345,514

SUCTION CLEANER Filed April 23, 1941 4 Sheets-Sheet 3 11 ill INVEN TOR(ha/1e86- Iroxler ATTORNEY March 28, 1944. c, G. TROXLER 2,345,514

SUCTION CLEANER Filed April 23, 1941 4 Sheets-Sheet 4 l N V E N T O RCharles 6. Tro xler BV W %RNEY Patented Mar. 28, 1944 SUCTION CLEANERCharles G. Troxler, North Canton, Ohio, asslgnor to The Hoover (Jompany,North Canton, Ohio, a corporation of Ghlo application April 23, 1941,Serial No. 389,904

11 Claim.

The present invention relates to suction cleanera in general and moreparticularly to a new and improved casing construction for suctioncleaners. More specifically the invention comprises a new and novelfabricated cleaner casing which is of greater simplicity and structuralstrength than those heretofore known.

it is an object of the present invention to provide a new and improvedsuction cleaner. It is another object of the'invention to provide a newand improved suction cleaner casing. A further object of the inventionis to provide a suction cleaner casing parts of which may be die cast orstamped and which interfit to provide a simplified stronger structure.Still another object of the invention is to provide a suction cleanercasing which forms an air passageway, a fan chamber and a motor housing,and which comprises two main separable parts which are readily diecastwlthout the use of side cores. A still further object of theinvention is to provide a suction cleaner casing in which an uppercasing portion forms the nozzle, the motor cas-,

ing, the fan chamber upper section, and the top of the air passagewayleading from the nozzle to the fan chamber, while the lower casingportlon forms the rear lip of the nozzle, the bottom wall oi? the airpassageway, leading from the nozzle to the fan chamber, the bottomportion of the fan chamber, and the side walls of the exhaustpassageway. A further object of the invention is to provide a suctioncleaner in which the cleaner casing-is formed of a plurality ofinteriitting parts which between them seat the driving motor andsuction-creating fan which is removable upon the separation of the partswhich are of extreme simplicity. These and other more specific objectswill appear upon reading the following specification and claim and uponconsidering in connection therewith the attached drawings.

Suction cleaner casings may be made in many ways. They may be fabricatedfrom sheet metal or they may be formed of die castings. They may beassembled from a plurality of parts which are designed to seat one uponthe other or they may be simply made of a few simple structural formswhich cooperate to provide a complete cleaner casing and which isdisassembled with the removal of a minimum of securing means. It is tothe latter type of construction that the present invention relates.

Referring now to the drawings in which preferred embodiments of theinvention are disclosed:

Figure 1 is a side view, partly in section, of a suction cleanerconstructed in accordance with the first embodiment of the invention:

Figure 2 is a section through the motor and. suction-creating fan uponthe line 2-2 of Figure 1;

Figure 3 is a front view of the cleaner illustrated in Figures 1 and 2with certain parts of the nozzle wall broken away;

Figure 4 is a view in perspective of the bottom portion of the cleanercasing in disassembled re latlonship;

Figure 5 is a side view of a second embodiment of the present inventionwith certain parts shown in section;

Figure 6 is a bottom view of the cleaner con structed in accordance withthe second embodi ment of the invention;

Figure '7 is a View through the driving motor and suction-creating fanupon the line 'l--'l of Fi ure 6.

The cleaner constructed in accordance with the present inventionembodies the usual cleaner parts comprising a nozzle l, a fan chamber 2,which houses a suction-creating fan 3, and which is connected to thenozzle l by means of the air passageway 44. A motor housing t contains adriving motor I, the shaft 8 of which carries the suction-creating fan 3within the fan chamber 2 and is extended into the air passageway 4 whereit carries a belt-driving pulley 9. An exhaust passageway ll extendsrearwardly from the suction-creating fan chamber 2 and has detachablyconnected to its rear end by manually releasable securing means l2 adirtfiltering bag l3. Within the nozzle l is posi" tioned a rotaryagitator it of a well known type which includes rigid beating andflexible brushing elements and which is itself actuated by apower-transmitting belt it which is connected at its opposite end to thedriving pulley 9. The driving motor 1 is seen to comprise an outer shellor casing ll which carries the stator it. The rotor I9 is rotatablycarried by the shaft 8 in end bearings it, it.

Front and rear supporting wheels 22 and 23 are positioned below thecleaner and movably support it while, as in the usual cleanerconstruction, a handle 24 is pivotally mounted upon a supporting bracket26 Positioned upon the exhaust outlet II and provides means by which themachine may be propelled in use. I

In the cleaner constructed in accordance with the present invention asillustrated in Figures 1 to 4, inclusive. the top, front and side wallsof the nozzle I, indicated at 3!, 32 and 33, the rear interior wallindicated at 34, and the top and side walls it and 31 of the airpassageway I are formed integrally in the top body portion of thecleaner casing. Also formed integrally therein are the upper sections ofouter side walls 39 and 4. and the common dividing wall 44 of the motorcasing i and fan chamber 2. Also formed therein are the top walls I" and43 of the exhaust passageway H and fan chamber 2. The bracket 2! whichcarries the pivoted handle 24 is preferably a separable element securedto the wall II in any suitable manner. The common upper wall section 44of the fan chamber 2 and the motor casing 6 extends downwardly to apoint slightly below the dividing plane X--X, illustrated in Figure 1.An abutment shoulder 46 is formed on wall section 44 and extends intocasing 6 to support a threaded screw 41 which positions the motor casingbody portion. The top of the cleaner casing is completed by a curvedappearance wall 48 which extends between the outer motor casing and fanchamber walls 39 and 40 to form the top of the motor casing 6, beingremovably secured at its rear side to the top of the exhaust passagewaywall 4| by a removable screw or screws 49.

Cooperating with the top body portion of the cleaner casing is thebottom body portion or section illustrated in its entirety in Figure 4and which is seen to form the entire underside of the cleaner body. Thefront extremity of this body portion extends horizontally and forms therear nozzle lip 5|. The surface rearwardly of lip 5| to the raisedshoulder portion 52, forms the bottom wall of the air passageway 4 andis indicated by the reference character 53. Side walls of this bodyportion, indicated at 54, 54, define openings 65 in which the frontsupporting wheels 22, 22 are positioned. This bottom casing section isformed immediately below the motor and fan with spaced vertical wallsections 51, 58 and 59 between which extends a common bottom wallsurface 6| having several elevations adapted to accommodate themechanism of the cleaner. The space defined by the vertical walls 5'!and 58 and the bottom wall it forms the lower portion of the motorcasing 6. The space between the walls 58 and 58, together with thebottom wall 6| therebetween, forms the lower portion of the fan chamber2, and rearwardly of the fan chamber where they extend belowv the wall4|, they form the side walls and bottom wall of the exhaust passagewayII.

The upper and lower cleaner casing sections are adapted to be securedtogether by a plurality of vertically extending screws or bolts whichare not illustrated but which are adapted to pass upwardly through thebottom section through the seats 63 to be suitably-seated within theupper casing section. One of these securing screws may be seen in Figure1 and is indicated there by the reference character 84.

It has been said that the cleaner body is formed of the two casingsections and this is substantially true but with the exception that theair passageway 4 between the nozzle I and the fan chamber 2 is actuallycompleted immediately adjacent the eye of the fan chamber by a removableis desired to disconnect the belt or to replace it.

This simple construction comprising two main pieces is one which can beeasily manufactured by die casting or stamping processes and is simple,durable, rigid, and economical to manufacture. The driving motor and fanare secured in the upper half of the body and are removable therefromsimply by removing the cover plate or shell 48 and manually removingscrews such as indicated at 41, the bottom half of the casing beingpreviously removed as permitted by the removal of the screws 64.Suitable seals, as indicated at 68, are preferably provided to seat themotor in its place in the body and to seal the fan chamber where theshell ll abuts the fan chamber side of wall 44.

Referring now to Figures 5 to 7, inclusive, the second preferredembodiment of the invention is illustrated and includes the samefunctional parts as in the first embodiment and those parts are hereindicated by the same reference characters. Several distinctions existbetween this embodiment and the first embodiment, however, and thesecomprise the elimination of removable curved shell 48 which formed thetop of the motor casing in the first embodiment and the forming of thetop wall of the motor casing integral with the side walls thereof and asa continuation of wall 43 which forms the top of the fan chamber. It isalso to be noted that in this embodiment the top wall 4! of the exhaustoutlet II has formed integrally with it a part of the side walls thereofwhere in the first embodiment the entire side walls were formed in thelower casing section.

As in the first embodiment the upper and lower casing sections aresecured together by vertical screws 64, but it is tobe noted that themotor shell I! of the first embodiment, which carried the stator l8, hasbeen eliminated and instead the motor stator I8 is carried directly bythe lower casing section to which it is secured as by screws H. Thesupporting bearings 2| of the armature l9 are likewise mounted in andbetween wall sections formed in the upper and lower half of the casing.In disassembly of this embodiment of the invention the motor andsuction-creating fan will come away from the upper half of the casingwith the lower casing section as distinguished from the firstembodimerit.

The handle in this embodiment is pivoted at the sides of the exhaustpassageway ll rather than upon a bracket 26 upon the top of that outletas in the first embodiment. Also, the removable pulley cover 66 of thefirst embodiment has been eliminated and the walls thereof are formedintegral with the top and bottom sections of the casing. A change ofappearance is brought about by the extension of the wheelpocket-formingside walls 54 rearwardly substantially to the end of the casing, or morespecifically to a point rearwardly of the eye of the fan chamber. As inthe first embodiment the two major sections comprising an upper topsection and alower casing section which make contact in arearwardly andupwardly inclined plane here denoted by the letters Y-Y as illustratedin Figure 5, and the upper and lower casing sections cooperate tocomplete the cleaner in substantially the same manner as described inconnection with the first embodiment.

As to features of assembly and disassembly and the inherent strength ofthe device, the second embodiment of the invention is quite like thatdescribed in the first embodiment and it is believed that theconstruction will be readily understood from a comparison therewith.

I claim:

In a suction cleaner of the type having a suction nozzle, an adjacentmotor casing and vertical fan chamber with their principal axes alignedand extended parallel to the nozzle, an air passageway between saidnozzle and fan chamber, and an exhaust outlet which extends rearwardlyfrom the underside of said fan chamber; an integral upper casing sectionwhich forms the front lip, front, top and side walls of said nozzle.

the top and side walls of a portion of said air passageway, the sidewalls of the upper portion of said motor casing, the top and side wallsof n the major portion of said Ian chamber, and the said motor casing.

CHARLES G. TROXLER.

